Alaskan Jelly Fart
the act of pouring atleast 1 litre of koolaid down your butt hole, then jamming the hole up with jelly beans to cork it and hold in the liquid, then having your partner sit underneath your ass while you push as hard as possible until the koolaide and jelly beans squirt all over your said partners face.
we had a pizza party, but i forgot a birthday present, so instead i gave the birthday boy an alaskan jelly fart.